The Transformer,pulse, cataloged under National Stock Number 5950-00-509-9056, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Freed Transformer Co. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-00-509-9056 |
| Primary Part Number | 28054 |
| Item Name | Transformer,pulse |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Freed Transformer Co |
| Status | ACTIVE |
| Mounting Facility Quantity | 2 SINGLE GROUP |
| Inclosure Type | HERMETICALLY SEALED |
| Mounting Method | THREADED STUD(S) SINGLE GROUP |
| Body Width | 0.438 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| Body Height | 1.688 INCHES MINIMUM AND 1.813 INCHES MAXIMUM IN |
| Pulse Repetition Rate | 300.0 HERTZ SINGLE COMPONENT |
| Winding Function and Quantity | 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT |
| Distance Between Mounting Facility Centers | 0.563 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN |
| Nominal Thread Size | 0.138 INCHES SINGLE GROUP IN |
| Body Length | 1.000 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| DC Resistance Rating in Ohms | 4.500 SINGLE COMPONENT SINGLE PRIMARY |
| DC Resistance Rating in Ohms | 4.600 SINGLE COMPONENT FIRST SECONDARY |
| DC Resistance Rating in Ohms | 4.700 SINGLE COMPONENT SECOND SECONDARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 410.0 HERTZ NOMINAL SINGLE COMPONENT |
| Terminal Type and Quantity | 6 WIRE HOOK |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 28054 | Freed Transformer Co (USA) |
| PEI 1307 | Precision Electronics, Inc (USA) |
| Reference | Meaning |
|---|---|
| A102V | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| SR3876 | 5/9 Secondary reference Edo |
| SF3876 | 3/9 Design control — primary reference Edo |
NSN 5950-00-509-9056 is a Transformer,pulse, manufactured by Freed Transformer Co, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-00-509-9056 has 2 manufacturer part numbers on file: 28054 (Freed Transformer Co), PEI 1307 (Precision Electronics, Inc).
5 possible matches (shared part number, not a government interchangeability claim): 5305-01-157-1926, 4720-01-185-9467, 5950-01-215-7107. Verify interchangeability with system specifications before substitution.
Key specifications for 28054: Mounting Facility Quantity: 2 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED; Mounting Method: THREADED STUD(S) SINGLE GROUP; Body Width: 0.438 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN. 17 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5950-00-509-9056 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.